$\lim_{x\to0}\left(\frac{e^{4x}-1}{2\:sin\:\left(x\right)}\right)$
$\frac{4x^2-x+2}{2x+2}$
$\int\left(9^{6x+3}\right)dx$
$\lim_{x\to\infty}\left(\frac{\left(3x+2\right)}{4x^2-3}\right)$
$4\:sen^2\:x\:-\:8\:sen\:x\:+\:3\:=\:0$
$y-\sqrt{x^2}-5$
$12,403\:+45+6,28$
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